Methods Patents (Class 353/121)
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Patent number: 12265230Abstract: An optical engine of a display system includes first and second sets of laser light sources, which may be independently controllable, with laser light from each set of laser light sources being respectively combined to form first and second elliptical laser light beams. The first and second elliptical laser light beams may propagate along parallel or angularly separated optical paths prior to incidence at a scan mirror of an optical scanner of the system. In some embodiments, the first and second elliptical laser light beams are incident on separate regions of the reflective surface of the scan mirror. In some embodiments, the first and second elliptical laser light beams are incident on partially overlapping regions of the reflective surface of the scan mirror.Type: GrantFiled: January 20, 2022Date of Patent: April 1, 2025Assignee: GOOGLE LLCInventor: Daniel Adema
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Patent number: 12198587Abstract: A projection-type display apparatus includes a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projected pixel projected from the panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shifting element. The display control circuit supplies, to the liquid crystal panel, the same data signal and controls the projected pixel to be at a same position in a unit period f1-1 and a unit period f2-1 period, and controls the optical path shifting element to cause the position of the projected pixel in each of a unit period f1-2 to a unit period f1-4, to be different from the position of the projected pixel in a respective one of a unit period f2-2 to a unit period f2-4.Type: GrantFiled: August 30, 2023Date of Patent: January 14, 2025Assignee: SEIKO EPSON CORPORATIONInventors: Toru Aoki, Hiroyuki Hosaka, Yusuke Komuro
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Patent number: 12140756Abstract: A method and system for reducing the effects of glare in a system comprising a picture generating unit, such as a holographic projector. The system may be a head-up display (HUD), which is configured to display a picture to a viewer, without requiring the user to look away from their usual viewpoint. The HUD system may be comprised within a vehicle. The glare in the system may be caused by light being incident on a surface comprising a screen or a window, through which the user looks at their usual viewpoint. The surface may comprise a windshield in a vehicle. The light that causes the glare may be ambient light. The method and system are provided for reducing the effects of glare in a system that comprises a waveguide in conjunction with the picture generating unit. The waveguide may be operable to act as an exit pupil expander.Type: GrantFiled: October 20, 2021Date of Patent: November 12, 2024Assignee: Envisics LtdInventors: Timothy Smeeton, Neil Collings
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Patent number: 12140757Abstract: A method and system for reducing the effects of glare in a system comprising a picture generating unit, such as a holographic projector. The system may be a head-up display (HUD), which is configured to display a picture to a viewer, without requiring the user to look away from their usual viewpoint. The HUD system may be comprised within a vehicle. The glare in the system may be caused by light being incident on a surface comprising a screen or a window, through which the user looks at their usual viewpoint. The surface may comprise a windshield in a vehicle. The light that causes the glare may be ambient light. The method and system are provided for reducing the effects of glare in a system that comprises a waveguide in conjunction with the picture generating unit. The waveguide may be operable to act as an exit pupil expander.Type: GrantFiled: October 31, 2022Date of Patent: November 12, 2024Assignee: Envisics LtdInventors: Timothy Smeeton, Neil Collings
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Patent number: 12106935Abstract: Embodiments described herein relate to methods and apparatus for forming gratings having a plurality of fins with different slant angles on a substrate and forming fins with different slant angles on successive substrates using angled etch systems and/or an optical device. The methods include positioning portions of substrates retained on a platen in a path of an ion beam. The substrates have a grating material disposed thereon. The ion beam is configured to contact the grating material at an ion beam angle ? relative to a surface normal of the substrates and form gratings in the grating material.Type: GrantFiled: April 25, 2023Date of Patent: October 1, 2024Assignee: Applied Materials, Inc.Inventors: Joseph C. Olson, Morgan Evans, Rutger Meyer Timmerman Thijssen
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Patent number: 12094430Abstract: A projector device includes: a storage unit storing lighting pattern information indicating the lighting start timing of an LED and the time sequence of a lighting continuation period from the lighting start timing; a drive control unit that causes the LED to light on the basis of the lighting pattern information; and a voltage measurement unit. The voltage measurement unit refers to the lighting pattern information and determines, for a target period, a lighting continuation period that is longer than a preset set period. The voltage measurement unit measures the forward voltage within the determined target period from the start of the period until a timing after the set period has elapsed.Type: GrantFiled: February 24, 2021Date of Patent: September 17, 2024Assignee: Nippon Seiki Co., Ltd.Inventor: Sayaka Mizuno
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Patent number: 12085449Abstract: A color measurement apparatus includes an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus, an incident light processing portion that processes light incident through the opening portion, a shutter unit that is a unit configured to be displaced between a closed position at which the opening portion is covered, and an open position at which the opening portion is open, and that includes a reflection reference surface used as a reference of reflectance at a position facing the opening portion, and a detection section that detects changes in a detection signal to be output in accordance with displacement of the shutter unit.Type: GrantFiled: November 12, 2021Date of Patent: September 10, 2024Assignee: SEIKO EPSON CORPORATIONInventors: Kenichi Furuya, Haruki Miyasaka, Hisayuki Akahane
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Patent number: 12050324Abstract: A head-mounted device may have a head-mounted support structure with left and right portions that are coupled at a nose bridge portion. The left and right portions may support respective clear transparent members that form left and right lenses. During operation of the head-mounted device, a user with eyes located in left and right eye boxes may view real-world objects through the left and right lenses. A left display system may have a left display device that faces inwardly and a right display device that faces inwardly. Input couplers, waveguides, and output couplers may be used to supply left and right images from the left and right display systems to the left and right eye boxes. The left display device and right display device may be mounted in the nose bridge portion of the head-mounted support structure.Type: GrantFiled: May 4, 2021Date of Patent: July 30, 2024Assignee: Apple Inc.Inventor: David A. Kalinowski
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Patent number: 12043165Abstract: The present invention relates to a method for operating a high-resolution projection headlight for a motor vehicle. The high-resolution projection headlight has an active LED pixel matrix light source which comprises an LED matrix monolithically integrated into a semiconductor chip with a plurality of light diode-based pixels and a driver circuit for separately controlling each individual pixel within the LED matrix. A current digital image of a sequence of images is continuously rasterized by means of a graphical controller from graphical data with at least one graphical object (50) and is provided for image reproduction with the projection headlight. A value for a thermal loading of the LED pixel matrix light source is continuously determined. During the rasterizing of a current digital image, surface areas (52) of the graphical objects (50) to be projected are at least partially masked with a masking (60, 61) and modulated, provided that the value for thermal loading exceeds a limit value.Type: GrantFiled: January 25, 2022Date of Patent: July 23, 2024Assignee: PSA AUTOMOBILES SAInventor: Philipp Roeckl
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Patent number: 12028657Abstract: A projection device and a keystone correction method thereof are provided. The keystone correction method is adapted for the projection device and includes the following steps. A first image is obtained. A first line-taking position parameter is determined according to a ratio of a first target edge length to a second target edge length. At least one line of input pixels disposed in a first direction is retrieved from the first image according to the first line-taking position parameter. A first scaling process related to the first direction is performed according to at least one line of input pixels of the first image, such that a line of output pixels of a second image disposed in the first direction is generated. The projection device projects the second image onto a projection screen to display a rectangular projected image.Type: GrantFiled: September 2, 2021Date of Patent: July 2, 2024Assignee: ALi CorporationInventors: Ben-Xiang Qu, Zhao-Dong Zhang
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Patent number: 12017716Abstract: The invention relates to a vehicle configurator (100) comprising a chassis (1), a transport structure (2) and one or more transfer means (41). The one or more transfer means are essentially arranged in a displacement plane. The vehicle configurator (100) is designed such that the transport structure (2) is displaceable with the one or more transfer means (41) in the displacement plane for loading or unloading the transport structure (2) from the chassis (1).Type: GrantFiled: July 1, 2020Date of Patent: June 25, 2024Assignee: CREATIVE INNOVATIONS AGInventors: Peter Kägi, Frank M. Rinderknecht
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Patent number: 11962948Abstract: The display method includes obtaining a target image showing a target region including a surface in a real space having the target region and a display, and displaying, on the display, a first simulation image including the target image and a first display image which is superimposed on the target image and fits within the display irrespective of a position of the display in real space, the first display image being obtained by viewing an image projected on a virtual plane corresponding to the surface from a virtual projector in a virtual space, the virtual plane being located at a first position corresponding to a position of the surface in the real space, from a second position corresponding to the position of the display in the real space.Type: GrantFiled: February 11, 2022Date of Patent: April 16, 2024Assignee: SEIKO EPSON CORPORATIONInventor: Kazuyoshi Kitabayashi
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Patent number: 11940619Abstract: A mirror device including a micromirror, which is excitable to an oscillatory motion such that a first impingement angle of a beam of light impinging upon its reflective surface varies within a first value range, and a cover element, which is stationary so that, due to the reflection at the reflective surface, the beam impinges upon at least one inner surface of the cover element and partially impinges as reflection beam upon the reflective surface. The cover element is aligned at an incline relative to a neutral position of the micromirror such that a second impingement angle of the reflection beam impinging upon the micromirror lies within a second value range outside the first value range. The reflective surface has a coating, which has a reflection coefficient of at least 0.6 for the first value range and a reflection coefficient of maximally 0.4 for the second value range.Type: GrantFiled: June 18, 2019Date of Patent: March 26, 2024Assignee: Robert Bosch GmbHInventor: Gael Pilard
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Patent number: 11927455Abstract: The present disclosure is directed toward systems and methods for an augmented reality transportation system. For example, the systems and methods described herein present an augmented reality environment for a driver or a passenger including augmented reality elements to mark specific locations within a display of real-world surroundings. Additionally, the systems and methods described herein analyze historical information to determine placements for augmented reality elements. The systems and methods also enable a user to share an augmented reality or virtual reality environment with another user.Type: GrantFiled: September 1, 2021Date of Patent: March 12, 2024Assignee: Lyft, Inc.Inventors: Ethan Duncan Eyler, Martin Conte MacDonell, Taggart Matthiesen, Jesse Jones McMillin, Robert Earl Rasmusson, Jr., Mark David Teater
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Patent number: 11927744Abstract: An apparatus, comprising one or more scan modules, each scan module having one or more laser sources that generate one or more laser beams and a beam deflector that deflects the one or more laser beams. A fluorescent emissive sheet (FES) receives the one or more laser beams deflected by the beam deflectors of the one or more scan modules and emits light of longer wavelength than that of the one or more laser beams at portions of the FES that are struck by the one or more laser beams. The FES includes at least one pre-patterned image configured to be highlighted by the one or more laser beams. Imaging optics form a virtual image from the light emitted from the portions of the FES that are struck by the one or more laser beams.Type: GrantFiled: December 15, 2021Date of Patent: March 12, 2024Assignee: MIRRORCLE TECHNOLOGIES, INC.Inventors: Veljko Milanovic, Abhishek Kasturi
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Patent number: 11927745Abstract: An apparatus, comprising two or more scan modules, each scan module having two or more laser sources that generate two or more laser beams and a beam deflector that deflects the two or more laser beams. A fluorescent emissive sheet (FES) receives the two or more laser beams deflected by the beam deflectors of the two or more scan modules and emit light of a first wavelength that is of a longer wavelength than that of the two or more laser beams at a first portion of the FES that is struck by the two or more laser beams. The two or more scan modules are disposed on a same side of the FES. The FES includes a second portion of the FES that emit a second wavelength of light that is different from the first wavelength and that has a longer than the wavelength than the two or more laser beams when the second portion is struck by the two or more laser beams. Imaging optics form a virtual image from the light emitted from the first portion or second portion of the FES that is struck by the two or more laser beams.Type: GrantFiled: December 15, 2021Date of Patent: March 12, 2024Assignee: MIRRORCLE TECHNOLOGIES, INC.Inventors: Veljko Milanovic, Abhishek Kasturi
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Patent number: 11906125Abstract: Lit image projection lamp and assemblies and methods to use the same to generate three-dimensional images. In an exemplary embodiment of a projection device of the present disclosure, the projection device comprises a light source and a curved lens positioned at a first distance from the light source, wherein the curved lens is a lenticular lens, having a concave portion and a convex portion, and wherein the projection device is configured to generate a homogenous light bar image from light emitted from the light source that passes through the curved lens.Type: GrantFiled: March 1, 2022Date of Patent: February 20, 2024Assignee: Flex-N-Gate Advanced Product Development, LLCInventors: Todd M. Nykerk, Lester R. Sullivan
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Patent number: 11895442Abstract: Provided is a light beam emission device and a light beam projection device, that are downsizable, have a simple configuration, and simplify complicated processing of video signals, such as the timing adjustment of video output signals, without generating color irregularity. The devices include: a plurality of light sources; and a condensing member. A range in the light source array direction, in which emission spots of the light beams emitted from the plurality of light sources respectively exist, is within a size in the array direction of a light beam, immediately after the light beam emitted from an emission spot located most closely to the center of the plurality of light sources, with respect to the condensing member, passed through the condensing member.Type: GrantFiled: September 8, 2021Date of Patent: February 6, 2024Assignee: UNIVERSITY OF FUKUIInventors: Toshio Katsuyama, Shoji Yamada, Akira Nakao
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Patent number: 11882265Abstract: A general purpose image and visual effects display apparatus, with associated methods, which is comprised of an array of independently angled reflective or refractive elements wherein the varying angle pattern of each element across said array is designed to reflect or refract specifically designed as well as fortuitously located existing colors, in precisely determined patterns, to make apparent to specific viewing or receiving locations a wide range of complex emergent visual and other effects. In some embodiments very high resolution and high color fidelity image display is possible. In other embodiments moving images akin to video can be displayed, using no electronics or moving parts. In other embodiments true binocular 3D images can be displayed directly to viewers, without the need for special 3D viewing glasses. Many of the embodiments and methods are applicable to non-visible light and other reflectable wave-based phenomena.Type: GrantFiled: June 20, 2019Date of Patent: January 23, 2024Inventor: James Yett
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Patent number: 11874468Abstract: The present invention provides an apparatus comprising a first out-coupling diffractive optical element and a second out-coupling diffractive optical element. Each of the first and second out-coupling diffractive optical elements comprises a first region having a first repeated diffraction spacing, d1, and a second region adjacent to the first region having a second repeated diffraction spacing, d2, different from the first spacing, d1. The first region of the first out-coupling diffractive optical element is superposed on and aligned with the second region of the second out-coupling diffractive optical element. The second region of the first out-coupling diffractive optical element is superposed on and aligned with the first region of the second out-coupling diffractive optical element.Type: GrantFiled: November 1, 2021Date of Patent: January 16, 2024Assignee: Magic Leap, Inc.Inventors: Jyrki Kimmel, Toni Jarvenpaa, Peter Eskolin, Marja Salmimaa
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Patent number: 11877103Abstract: A projection device and a projection picture correction method thereof are provided. When the projection device performs projection toward a projection surface, a plurality of target coordinates of a plurality of target vertexes are obtained based on a plurality of planes of the projection surface. The plurality of planes are not coplanar with each other, and the plurality of target vertexes form a target polygon. A first direction scaling process is performed respectively on a plurality of first image portions of an original trapezoidal image and a trapezoidal image block is generated. A second direction scaling process is performed respectively on a plurality of second image portions of the trapezoidal image block and a target image block aligned with the target polygon is generated. An output image including the target image block is projected onto the projection surface.Type: GrantFiled: September 8, 2021Date of Patent: January 16, 2024Assignee: ALi CorporationInventors: Zhao-Dong Zhang, Ben-Xiang Qu, Lun Liang
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Patent number: 11860520Abstract: A projector includes a main body and a projection lens. The main body includes a light source, liquid crystal panels that modulate light outputted from the light source, and a lens holder to and from which the projection lens is attachable and detachable. The projection lens projects the light modulated, and the lens holder includes a first lens holding mechanism and a second lens holding mechanism that hold the projection lens.Type: GrantFiled: December 14, 2022Date of Patent: January 2, 2024Assignee: SEIKO EPSON CORPORATIONInventor: Kenji Sakamoto
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Patent number: 11860525Abstract: Embodiments of the present disclosure provide a projector and a projection system. In the projector, a projection light source, a polarizing beam splitting prism, and a projection lens are disposed in a first direction, and the polarizing beam splitting prism is disposed between the projection light source and the projection lens; a polarized light converting component, the polarizing beam splitting prism, and an LCOS imaging chip are disposed in a second direction, and the polarizing beam splitting prism is disposed between the polarized light converting component and the LCOS imaging chip, wherein the second direction is perpendicular to the first direction.Type: GrantFiled: November 12, 2021Date of Patent: January 2, 2024Assignee: IVIEW DISPLAYS (SHENZHEN) COMPANY LTD.Inventors: Hongji Lai, Steve Yeung, Zhiqiang Gao, Yuan Zhao, Mingnei Ding
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Patent number: 11852463Abstract: Optical apparatus includes a beam source, which is configured to generate an optical beam having a pattern imposed thereon. A projection lens is configured to receive and project the optical beam so as to cast the pattern onto a first area in space having a first angular extent. A field multiplier is interposed between the projection lens and the first area and is configured to expand the projected optical beam so as to cast the pattern onto a second area in space having a second angular extent that is at least 50% greater than the first angular extent.Type: GrantFiled: June 7, 2021Date of Patent: December 26, 2023Assignee: APPLE INC.Inventors: Benny Pesach, Zafrir Mor, Shimon Yalov, Alexander Shpunt
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Patent number: 11852816Abstract: The display may include a display module and a waveguide. The module may produce first light of first wavelengths during first time periods and may produce second light of second wavelengths during second time periods interleaved with the first time periods. Diffractive gratings or a dichroic wedge may redirect the first light into the waveguide at a first angle and may redirect the second light into the waveguide at a second angle separated from the first angle by a separation angle. The separation angle may be equal to half the angle subtended by the projection of a pixel in the module. The first and second time periods may alternate faster than the response of the human eye. This may configure the first and second image light to collectively provide images at an eye box with an increased effective resolution without increasing the space or power consumed by the display module.Type: GrantFiled: July 12, 2021Date of Patent: December 26, 2023Assignee: Apple Inc.Inventors: Scott M. DeLapp, Guolin Peng, Hyungryul Choi, Vikrant Bhakta
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Patent number: 11838681Abstract: An electronic imager (1) for imaging a photographic medium, comprising at least one array (6) of micromirrors (2), each of which is suitable for reflecting, during a change in position, a light beam coming from at least one light source (3) towards a projecting optical element (4), the change in position of the micromirrors (2) being controlled by a signal modulated at a toggling frequency (fb) of the micromirrors comprised between 1 Hz and 100 kHz.Type: GrantFiled: November 2, 2018Date of Patent: December 5, 2023Assignee: DIGIFILM CORPORATIONInventor: Howard Robert Hampton O'Neil
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Patent number: 11836956Abstract: A control method for an electronic device and an electronic device are provided. The electronic device includes an infrared emitter, an infrared sensor, and a visible light sensor. The control method includes: acquiring an original pixel position of a zero-level region on the infrared sensor; acquiring a human eye pixel position of a human eye region on the visible light sensor; determining whether a human eye enters the zero-level region according to the original pixel position and the human eye pixel position; and triggering a protection mechanism of the infrared emitter when the human eye enters the zero-level region.Type: GrantFiled: November 22, 2021Date of Patent: December 5, 2023Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Lu Wang
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Patent number: 11829002Abstract: Embodiments of the present disclosure relate to a zooming projection method and a projector. The projector includes a focusing device and a lens movable along an optical axis. The method includes: acquiring a projection distance between the projector and a projection position; adjusting the lens to a target position for projection by the focusing device in response to the projection distance being within an optical zooming range; and scaling a projection image and projecting the scaled projection image in response to the projection distance being not within the optical zooming range.Type: GrantFiled: December 7, 2021Date of Patent: November 28, 2023Assignee: IVIEW DISPLAYS (SHENZHEN) COMPANY LTD.Inventors: Wenxiang Li, Mingnei Ding, Steve Yeung, Zhiqiang Gao
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Patent number: 11804158Abstract: In a projection-type display device including a liquid crystal panel where panel pixels are arranged in a first direction and a second direction, the polarity of the image signal supplied to each of all panel pixels is set to the same polarity in the same unit period among a plurality of unit periods, and the polarity of the image signal is reversed upon transition from the current frame period to the next frame period. The polarity of the image signal is reversed when a projection pixel is shifted by a light path shifting element unit in the first direction or in the second direction upon transition of the unit period, and the polarity of the image signal is not reversed when it is shifted along a third direction or a fourth direction that intersects the first direction and the second direction.Type: GrantFiled: May 25, 2022Date of Patent: October 31, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Hiroyuki Hosaka
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Patent number: 11763727Abstract: The display method includes obtaining a target image showing a target region including a surface, displaying a simulation image on a display, the simulation image being obtained by superimposing a display image on the target image, the display image corresponding to an image to be projected by a projector on the surface, displaying the target image included in the simulation image on the display with a brightness based on first information which specifies a brightness of the target region, and displaying the display image included in the simulation image on the display with a brightness based on second information which specifies a brightness of the display image.Type: GrantFiled: January 26, 2022Date of Patent: September 19, 2023Assignee: SEIKO EPSON CORPORATIONInventor: Kazuyoshi Kitabayashi
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Patent number: 11747616Abstract: A display device includes a display member, a lens, and a light intensity adjuster. The display member is configured to display an image by releasing relatively short-wavelength light and relatively long-wavelength light. The lens is configured to allow the image on the display member to be reproduced on an eye of the user and thicker in the middle thereof than at the periphery thereof. The light intensity adjuster is included in the display member. The light intensity is configured to allow short-wavelength light to be released from a middle of the display member in a larger amount than both short-wavelength light to be released from ends of the display member and long-wavelength light to be released from the middle of the display member.Type: GrantFiled: July 17, 2018Date of Patent: September 5, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Naru Usukura, Hiromi Katoh
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Patent number: 11722649Abstract: The present invention relates to display systems that use materials made from various arrangements of lenses and other optical materials. Careful design and use of these materials can be used to achieve display systems with many desirable visual effects having applicability in image and video displays, virtual reality, immersive environments, as well as in architecture, art, entertainment, and interactive systems.Type: GrantFiled: May 19, 2022Date of Patent: August 8, 2023Assignee: HyperStealth Biotechnology CorporationInventor: Guy Cramer
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Patent number: 11693301Abstract: An illumination system, including a light source module, a phosphor wheel, a light recycling element, and a light uniformizing element, is provided. The light source module emits an excitation light beam. The phosphor wheel includes a phosphor region. At a second timing, the other part of the excitation light beam transmitted to the phosphor region forms an unconverted light beam and is transmitted to the light recycling element, and is reflected by the light recycling element to form a recycled light beam. A part of the recycled light beam is converted into a second converted light beam. A first converted light beam and the second converted light beam are transmitted to the light uniformizing element through a same path, so that the illumination system outputs second light in the illumination light beam. A projection apparatus is also provided.Type: GrantFiled: November 26, 2021Date of Patent: July 4, 2023Assignee: Coretronic CorporationInventors: Yu-Shan Chen, Wan-Ting Hsieh, Ming-Tsung Weng, Chi-Tang Hsieh, Haw-Woei Pan, Jo-Han Hsu, Kuan-Ta Huang
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Patent number: 11694640Abstract: The invention relates to a system for displaying information to a user, comprising: an emission device arranged to emit light so as to display information to a user, the emission device being adapted to emit the light in a pulsed manner so that the intensity of the light varies between a high value and a low value, a selective viewing device comprising a panel, the panel being adapted so that the user can view the light which is emitted by the emission device through that panel so as to visually perceive the information being displayed, the panel having a variable transparency which can be varied between a state of high transparency and a state of low transparency, the system being adapted to synchronize the emission device and the selective viewing device so that the states of the emission device emitting light at a high-intensity value and the states of the panel of the selective viewing device of high transparency overlap in time, the emission device being adapted so that the light is emitted in a pulseType: GrantFiled: October 21, 2021Date of Patent: July 4, 2023Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.Inventors: Ivan C. Baines, Moritz Kreysing
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Patent number: 11679679Abstract: A floating-information display includes a first quarter-wave retarder disposed on a side of an optical plate. A reflective polarizer is disposed between the first quarter-wave retarder and the optical plate. A first display is configured to transmit a first image along a first axis through the first quarter-wave retarder to the reflective polarizer. The reflective polarizer redirects the first image along a second axis through the first quarter-wave retarder toward a viewer. The first image appears to the viewer to be oriented normal to the second axis and at a first location. A second display is configured to transmit a second image to the optical plate. The second image is transferred through the first quarter-wave retarder along the second axis toward the viewer. The second image appears to the viewer to be oriented normal to the second axis and at a second location.Type: GrantFiled: October 22, 2021Date of Patent: June 20, 2023Assignee: Visteon Global Technologies, Inc.Inventors: Paul Fredrick Luther Weindorf, Pawel Murzyn, Qais Sharif
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Patent number: 11652969Abstract: A projection apparatus includes a main body configured to project and display an image from a projection port of the main body; and an operation detection apparatus detachably attached to the main body and configured to acquire operation information relating to an operation on a projection screen performed by an operator. The main body includes an attachment portion provided on a surface of the main body on which the projection port is provided. The attachment portion is a portion where the operation detection apparatus attached to the main body.Type: GrantFiled: February 8, 2021Date of Patent: May 16, 2023Assignee: Ricoh Company, Ltd.Inventor: Jun Mashimo
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Patent number: 11650151Abstract: Light is projected through a grid (e.g., a Ronchi ruling) and onto a background, where it forms an image of the ruling. The light from this projected image is then reflected back onto the same grid, with a polarizing refractor (e.g., a Rochon polarizing prism) imparting a small offset between the projected and reflected light, and then on to an imaging camera. Thus, a separate source and cutoff grid is not needed, resulting in a focusing schlieren system that is compact and easy to construct and align. In some embodiments, translation of the polarizing refractor along the instrument axis provides a sensitivity adjustment of the resulting schlieren images. Manipulation of the polarization state of the light through the system allows the projected and reflected light to be coincident, maintaining a small footprint for the system, which can be mounted to the front of the imaging camera.Type: GrantFiled: September 30, 2021Date of Patent: May 16, 2023Assignee: United States of America as represented by the Administrator of NASAInventors: Brett F. Bathel, Joshua M. Weisberger
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Patent number: 11630378Abstract: A laser projection apparatus includes a laser source, an optical engine and a projection lens. The optical engine includes a light pipe, a lens assembly, a reflector, a prism assembly and a digital micromirror device. An optical axis of the illumination beam transmitted by the light pipe and the lens assembly is a first optical axis. An optical axis of an illumination beam reflected by the reflector to the prism assembly is a second optical axis. The first optical axis is perpendicular to the second optical axis, and both the first optical axis and the second optical axis are parallel to the beam receiving face of the digital micromirror device.Type: GrantFiled: July 29, 2020Date of Patent: April 18, 2023Assignee: HISENSE LASER DISPLAY CO., LTD.Inventors: Mingchen Ma, Liang Yin
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Patent number: 11624915Abstract: A near-eye display device and a near-eye display method are provided. In the near-eye display device and method, displaying a first image and a second image in different time periods by using a display portion; converting light of the first image to first linearly polarized light and converting light of the second image to second linearly polarized light by using a polarization conversion portion, a polarization direction of the first linearly polarized light being different from that of the second linearly polarized light; receiving the first linearly polarized light and the second linearly polarized light, and causing them to be emitted towards different directions by using a polarization splitting portion; and transmitting the first linearly polarized light and transmitting the second linearly polarized light by using an image light transmission portion.Type: GrantFiled: October 24, 2019Date of Patent: April 11, 2023Assignee: BOE Technology Group Co., Ltd.Inventor: Tao Hong
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Patent number: 11592153Abstract: A lighting device (10) for a motor vehicle headlamp, which lighting device comprises the following: at least one first light source (50) for radiating light beams in a first radiation direction (X1), a first deflection device (100) with a deflection surface (110), which is set up to deflect at least a portion of the light beams of the at least one first light source (50) in a second radiation direction (X2), and a second deflection device (200) with a multiplicity of deflection elements which can be controlled and moved independently of one another for deflecting at least a portion of the light beams of the light beams deflected by the first deflection device (100) in a third radiation direction (X3) and for creating a light distribution in front of the lighting device (10), wherein the first deflection device (100) comprises at least one second light source (60), which at least one second light source (60) has a main radiation direction in which light beams of the second light source can be emitted, whereType: GrantFiled: December 12, 2019Date of Patent: February 28, 2023Assignee: ZKW Group GmbHInventors: Stefan Mitterlehner, Thomas Mitterlehner
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Patent number: 11589020Abstract: A parameter adjusting method is applied to a projector having an ambient light sensor, a database and a digital micromirror device. The parameter adjusting method includes analyzing a detection signal generated by the ambient light sensor to acquire an environmental light datum, comparing the environmental light datum with a lookup table of the database to compute at least one compensation parameter, and adjusting an amount of reflection light generated by the digital micromirror device in accordance with the at least one compensation parameter for controlling the projector to output a calibrated projection image in response to compensation of the environmental light datum.Type: GrantFiled: August 26, 2021Date of Patent: February 21, 2023Assignee: BenQ CorporationInventors: Hung-Chi Tsai, Chen-Cheng Huang
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Patent number: 11573418Abstract: An apparatus including a first substrate including a first incoupling diffractive optical element configured to couple light into the first substrate, and a first outcoupling diffractive optical element configured to output, from the first substrate, light that has been coupled into the first substrate; and a second substrate including a second incoupling diffractive optical element configured to couple light into the second substrate, and a second outcoupling diffractive optical element configured to output, from the second substrate, light that has been coupled into the second substrate; wherein the first and second incoupling diffractive optical elements are substantially inverse of each other and the first and second outcoupling diffractive optical elements are substantially inverse of each other.Type: GrantFiled: May 21, 2021Date of Patent: February 7, 2023Assignee: Nokia Technologies OyInventor: Toni Johan Jarvenpaa
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Patent number: 11512833Abstract: A system, comprising a light source configured to emit light; and a first component including a reflective surface configured to reflect the light as a plurality of light elements that are reflected onto a second component. The reflective surface may include a plurality of mirrors. Each mirror, of the plurality of mirrors, may be configured to reflect a portion of the light as a respective light element of the plurality of light elements. A first light element, of the plurality of light elements, may be reflected onto a first location of the surface. A second light element, of the plurality of light elements, may be reflected onto a second location, of the surface, that is different than the first location.Type: GrantFiled: February 9, 2022Date of Patent: November 29, 2022Assignee: Disney Enterprises, Inc.Inventors: Daniel M. Joseph, Jessica Klouda
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Patent number: 11500231Abstract: A modulation control method for a filter device for avoiding flicker appearing in streamed video images before acquiring images, includes setting the exposure time to be equal or longer than an oscillating light source's period duration or to be as long as possible between two frames in the image acquisition of streamed video images, polarizing of incoming light in a first polarizer to turn into polarized light with a first polarization, altering the polarization of the light with the first polarization in an electro- or magneto-optic modulator by an angle ? to turn into light with a second polarization, and reducing an amount of light with the second polarization in a second polarizer.Type: GrantFiled: July 27, 2018Date of Patent: November 15, 2022Assignee: SMR Patents S.à.r.l.Inventors: Thomas Jochmann, Andreas Herrmann
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Patent number: 11487196Abstract: Apparatus comprising a projection device for projecting an image, a transparent projection screen for displaying the projected image and a secondary image surface on an opposite side of the screen to the projector device and where an undesired secondary image appears. Different arrangements for the management of the undesired secondary image are disclosed.Type: GrantFiled: June 24, 2019Date of Patent: November 1, 2022Inventor: Elisabeth Berry
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Patent number: 11470289Abstract: The disclosure relates to a retinal display apparatus for generating an image on the retina of an eye of a user, wherein the retinal display apparatus is configured to generate multiple light beams, each light beam conveying an instance of the image, wherein the multiple light beams correspond one-to-one to multiple potential orientations of the eye of the user. Moreover, the disclosure relates to a corresponding method.Type: GrantFiled: January 4, 2021Date of Patent: October 11, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Hector Navarro Fructuoso, Bogdan Cihodariu Ionita, Atanas Boev, Panji Setiawan
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Patent number: 11451755Abstract: A method for controlling an electronic instrument including a projection section that projects an image via a projection lens and an imaging section that performs imaging via an imaging lens includes causing a first storage to store first characteristic data representing the characteristics of the projection lens, second characteristic data representing the characteristics of the imaging lens, and arrangement data representing the arrangement of the projection lens and the imaging lens and then causing the projection section to project a pattern image on an object via the projection lens, causing the imaging section to capture an image of the pattern image on the object via the imaging lens to generate captured image data, and updating the arrangement data based on the captured image data, the first characteristic data, and the second characteristic data without updating the first characteristic data and the second characteristic data.Type: GrantFiled: February 25, 2021Date of Patent: September 20, 2022Assignee: SEIKO EPSON CORPORATIONInventor: Taisuke Yamauchi
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Patent number: 11431947Abstract: An operation method for an information processing device having a display area used to generate a video image projected into a projection target area by a projector is provided. The method includes: in a first mode for generating the video image, specifying a designated part designated by a user in the display area; displaying, in the display area, a first video image showing a first object arranged in the designated part and a second object which moves in the display area and changes on reaching the designated part; and causing the projector to project the first video image into the projection target area; and in a second mode for the projector to project the video image into the projection target area, causing the projector to project a second video image resulting from eliminating the first object from the first video image, as the video image into the projection target area.Type: GrantFiled: November 25, 2020Date of Patent: August 30, 2022Assignee: SEIKO EPSON CORPORATIONInventor: Toshiyuki Sakai
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Patent number: 11422359Abstract: A projector, a rotational phase control device, a program for the rotational phase control device, and a wheel rotational speed control method include: a phosphor wheel that emits a plurality of different color lights at a cycle corresponding to a rotational speed when excitation light is irradiated; a color wheel into which the lights emitted from phosphor wheel enter; and a rotational phase control device that controls a rotational speed and a phase of color wheel in accordance with a rotational speed and a phase of phosphor wheel so that a phase relationship between phosphor wheel and color wheel is not changed and so that a rotational speed ratio between phosphor wheel and color wheel is equal to a rotational speed ratio between phosphor wheel and color wheel in a steady state.Type: GrantFiled: December 5, 2017Date of Patent: August 23, 2022Assignee: SHARP NEC DISPLAY SOLUTIONS, LTD.Inventor: Takeshi Kato
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Patent number: 11412922Abstract: Disclosed embodiments integrate a camera into an intraoral mirror. Integrating a camera into an intraoral mirror provides an efficient way to record and display what is visible to the healthcare provider in the mirror.Type: GrantFiled: September 22, 2020Date of Patent: August 16, 2022Assignee: Dental SmartMirror, Inc.Inventors: Gidon Oded Elazar, Dan Zidkiahu Harkabi, Joshua Israel Wachspress, Yael Miriam Harkabi